WACO (January 26, 2012)—Raymond Ross Mormino II, 54, was in custody Thursday, charged with aggravated assault and failure to stop and render aid in a hit-and-run accident Monday in Cameron Park that left McLennan County Sheriff’s Deputy Tyrone Caldwell, 41, in critical condition.

Mormino is the son of longtime McLennan County State District Judge Raymond Mormino who died in February 2011 at the age of 90.

Waco police arrested Mormino Thursday at his home at 1001 Cloverleaf #9-b in Bellmead.

The address is same one at which detectives found a red Ford Ranger pickup Tuesday night that matched the description of the pickup that hit Caldwell, the affidavit submitted for the arrest warrant says.

The truck was impounded at the Waco police crime lab for forensic testing.

"Pieces of the truck were found at the scene that matched up to the damaged pieces of the truck (that was impounded)," the affidavit said.

The affidavit says Mormino told an investigator he was driving the truck Monday on Sturgis Road when he passed two groups of people who were walking and “something hit his truck,” the affidavit said.

“Mormino did not stop and does not know what hit his truck,” the affidavit said.

Caldwell and a woman, who was not identified, were walking Monday morning south on Sturgis near the intersection of North 4th Street when a southbound pickup struck him, knocking him into a grassy area.

The driver then sped off.

The woman with whom Caldwell was walking was not injured.

Two women who were in front of the couple said they heard the impact and then heard the woman scream.

They saw the truck speeding away, but weren't able to get the license number.

Witnesses said the man driving the truck was white and was wearing a blue shirt.

The Sheriff’s Law Enforcement Association of McLennan County was offering a reward of almost $5,000 for information leading to an arrest.

An account has been set up for Caldwell at the McLennan County Employees Federal Credit Union at 215 North 5th St., Suite 224 Waco, Texas 76701.

Mormino’s father was attending Baylor University when he received an appointment to the U.S. Naval Academy at the start of World War II.

He opted instead to join the Air Force.

He was serving as a navigator and bombardier when he was terribly burned in the crash of a B-26 bomber during a training flight in Louisiana prior to D-Day during World War II.

He was the only member of the plane’s crew to survive.

He underwent more than 100 surgeries over the next decade.

He returned to Baylor University in 1946 after leaving the U.S. Air Force, earning his bachelor and law degrees and going on to serve as a justice of the peace and in 1970 as the first judge of Waco’s 170th State District Court, from which he retired in 1989.